ZyXEL Communications Plumbing Product metrogigabit switch User Manual

Chapter 37 DHCP

MGS3700-12C User’s Guide

The following table describes the labels in this screen. 

The follow figure shows a network example where the Switch is used to relay 
DHCP requests for the VLAN1 and VLAN2 domains. There is only one DHCP 
server that services the DHCP clients in both domains. 

Figure 179   Global DHCP Relay Network Example 

Configure the DHCP Relay screen as shown. Make sure you select the Option 82 
check box to set the Switch to send additional information (such as the VLAN ID) 

Table 120   IP Application > DHCP > Global

Active

Select this check box to enable DHCP relay.

Remote 
DHCP 
Server 1 .. 3

Enter the IP address of a DHCP server in dotted decimal notation.   

Relay Agent 
Information

Select the Option 82 check box to have the Switch add information (slot 
number, port number and VLAN ID) to client DHCP requests that it relays to 
a DHCP server. 

Information

This read-only field displays the system name you configure in the General 
Setup screen. 

Select the check box for the Switch to add the system name to the client 
DHCP requests that it relays to a DHCP server.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The 
Switch loses these changes if it is turned off or loses power, so use the 
Save link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.

Cancel

Click Cancel to begin configuring this screen afresh.